This is the 808th most frequent Czech word.
sport
Physical activity or game undertaken for exercise, competition, or recreation.
Here, 'sport' is used as a noun referring to physical activities individuals participate in for recreation or competition.
Sport je v naší rodině velmi důležitý.
Sport is very important in our family.
In this sentence, 'sport' is used to denote the various types of activities, emphasizing the act of participation.
Každý víkend se věnuji nějakému sportu.
Every weekend, I engage in some kind of sport.
Here, 'sport' refers to a specific type or category of organized physical activity.